Fergalicious - by Fergie's definition is to make them boys go loco or crazy.
This word is a combination of FERGIE and DELICIOUS.
Fergalicious is an adjective to describe Fergie of the B.E.Ps, this describes how sexy she is, and has similar connotations and implied meaning as My Humps.

Fergalicious, definition, makes them boys go loco. They run my treasures so they get the pleasures from my photo, you can see it, you can squeeze me, I ain't easy, I ain't sleezy, I got reasons why I'm tease 'em, boys just come and go like caesars. I'm Fergalicious.